is there anything, in your view, which would make someones behavior objectively rude?
You know how you just implicitly asked me to give you an example of one even though you asked me only a yes/no question? And you know how the most charitable interpretation of that request is that you actually want to better understand my position and not snidely imply that I don't have one? Well my answer to you is "Go fuck yourself. You aren't worth my time." (sorry, this is an example)